The world's population will likely reach 9.2 billion in 2050, with virtually all new growth occurring in the developing world, a U.N. report said Tuesday.
According to the U.N. Population Division's 2006 estimate, the world's population will likely increase by 2.5 billion people over the next 43 years from the current 6.7 billion -- a rise equivalent to the number of people in the world in 1950.
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